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All results from a given calculation for CHF3 (Methane, trifluoro-)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-337.420169
Energy at 298.15K-337.422682
HF Energy-336.769133
Nuclear repulsion energy132.879138
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at QCISD/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3198 3045 47.88      
2 A1 1172 1116 108.11      
3 A1 704 671 15.08      
4 E 1461 1392 92.97      
4 E 1461 1392 92.97      
5 E 1227 1168 229.10      
5 E 1227 1168 229.10      
6 E 505 481 3.90      
6 E 505 481 3.90      

Unscaled Zero Point Vibrational Energy (zpe) 5730.5 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 5457.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at QCISD/6-31G*
ABC
0.34078 0.34078 0.18690

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.342
H2 0.000 0.000 1.434
F3 0.000 1.257 -0.129
F4 1.089 -0.629 -0.129
F5 -1.089 -0.629 -0.129

Atom - Atom Distances (Å)
  C1 H2 F3 F4 F5
C11.09131.34281.34281.3428
H21.09132.00592.00592.0059
F31.34282.00592.17752.1775
F41.34282.00592.17752.1775
F51.34282.00592.17752.1775

picture of Methane, trifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 110.566 H2 C1 F4 110.566
H2 C1 F5 110.566 F3 C1 F4 108.355
F3 C1 F5 108.355 F4 C1 F5 108.355
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability